Re: 187 oz-in steppers for 34.95?

Can I ask what you use for a power supply and controller? I haven't
bought them yet and would like your input since you run the same
motors I'll be running.

Thanks,
Kevin


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mehmet Gogus" <gogusm@d...>
wrote:

> Both PK268M-02A and TM02MTR4572 are the same motors, except PK268M-

02A is

> listed as 191 oz.in. (1.35 Nm) @$99 in Oriental Motors web site.
> This is a good motor, I used it. I can recommend it for a desktop

mill

> application or similar only, as the torque will drop dramatically

after 60

> rpm speed. If you can drive them half-step @1-1.5kHz, a 1/8"

(3.175 mm)

> lead on the screw will give you 0.00016" (0.004mm) step accuracy.

So you

> don't really need micro stepping drivers like 1/4, 1/8 etc. Only
> halfstepping will give you a super accuracy. Great price for a 8

ipm axis

> motion.
>
> A couple of words for the power: I feed them @42VDC at 2.15A which

I believe

> they give their best performance. So your power supply and driver

boards

> should be capable of doing so.
>
> Memo